CN202284719U - Compressor and control system for mixed compressed natural gas (CNG) filling station - Google Patents

Compressor and control system for mixed compressed natural gas (CNG) filling station Download PDF

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Publication number
CN202284719U
CN202284719U CN2011203979491U CN201120397949U CN202284719U CN 202284719 U CN202284719 U CN 202284719U CN 2011203979491 U CN2011203979491 U CN 2011203979491U CN 201120397949 U CN201120397949 U CN 201120397949U CN 202284719 U CN202284719 U CN 202284719U
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CN
China
Prior art keywords
compressor
gas
mixed
exhaust duct
complementary
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Expired - Fee Related
Application number
CN2011203979491U
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Chinese (zh)
Inventor
王勇
吴军
游敦泉
张仁科
王建
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Sichuan Venus clean energy equipment limited-liability company
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SICHUAN JINXING COMPRESSOR MANUFACTURING Co Ltd
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Priority to CN2011203979491U priority Critical patent/CN202284719U/en
Application granted granted Critical
Publication of CN202284719U publication Critical patent/CN202284719U/en
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Abstract

The utility model relates to a compressor and discloses a compressor for a mixed compressed natural gas (CNG) filling station, which not only is capable of filling gas for CNG automobiles but also is capable of filling the gas for tank cars, i.e. the compressor for the mixed CNG filling station is multipurpose. The technical scheme disclosed by the utility model has the main points that the compressor for the mixed CNG filling station comprises compressor bodies, discharge ducts and gas valve switches, wherein the compressor bodies are connected with the discharge ducts through the gas valve switches, and the discharge ducts comprise discharge ducts matched with gas filling columns and discharge ducts matched with sequence plates. Moreover, the utility model also discloses a control system for the mixed CNG filling station, which is capable of realizing intelligent working by fully and effectively utilizing the compressor. The compressor and the control system for the mixed CNG filling station are suitable for the mixed CNG filling station.

Description

Mixed C NG gas station is with compressor and control system
Technical field
The utility model relates to compressor, and particularly a kind of mixed C NG gas station is with compressor and mixed C NG gas station control system.
Background technique
Common natural gas filling station has following several types at present:
1. mark is stood: build the place of source of the gas in, suction pressure is 0.1~6.0MPa usually, and the inflation object is the CNG automobile; Its control system comprises: control gear (generally adopting the PLC controller), compressor, sequential disc, gas selling machine, and the gas station that has also comprises gas storage well; Need inflate or gas storage well need inflate the time as the CNG automobile, provide pressure signal through sequential disc, control gear detects pressure signal time control system compressor and opens, and is the CNG refueling to the gas storage well inflation or through gas selling machine; This system works pattern is called mark station pattern, and the compressor arrangement at this kind gas station comprises compressor body, air valve switch (generally adopting manual air valve) and the exhaust duct that is complementary with sequential disc; Compressor body through air valve switch be connected with exhaust duct that sequential disc is complementary;
2. substation: the place of building no source of the gas in; Rely on automobile haul high-pressure gas cylinder group (hereinafter to be referred as tank car) to come air feed, source of the gas to derive from female station, its gas storage pressure is 20Mpa; Tank car is hauled natural air entraining substation, give CNG automobile air feed through natural gas supply sub-station again; Its control system comprises control gear, tank car, compressor, sequential disc, gas selling machine; The admission line of compressor is connected with tank car, when the CNG automobile need be inflated, provides pressure signal through sequential disc, and control gear detects pressure signal time control system compressor and opens, and is the CNG refueling through gas selling machine; This system works pattern is called the substation pattern, and the compressor arrangement at this kind gas station comprises compressor body, air valve switch and the exhaust duct that is complementary with sequential disc; Compressor body through air valve switch be connected with exhaust duct that sequential disc is complementary;
3. female station: build the place of source of the gas in, suction pressure is 1.0~6.0MPa usually, and the inflation object is a tank car, and its control system comprises: control gear, compressor, inflation post; When tank car need be inflated, provide inflation through the inflation post and allow signal, when control gear detected inflation permission signal, the control compressor was opened, and inflated to tank car through the inflation post; This system works pattern is called female station pattern, and the compressor arrangement at this kind gas station comprises compressor body, air valve switch and the exhaust duct that is complementary with the inflation post; Compressor body through air valve switch be connected with the exhaust duct that is complementary of inflation post;
4. mixed C NG gas station: in order to practice thrift the cost of building a station, quite a few has the place of source of the gas to set up mixed C NG gas station, the form that mix at promptly female station and mark station; This kind gas station needs to adopt simultaneously female station compressor and mark station compressor, so, just causes a gas station that a plurality of different types of compressors are just arranged, and dissimilar compressors can not be general, increased the cost of building a station; And in actual use; Because inflation object different (for the tank car inflations or be the CNG automobile inflating), operating time section difference, region, etc. factor influence; Cause female station compressor also different with mark station compressor frequency of utilization; The compressor frequency of utilization that has is very high, and the frequency of utilization that has is very low, can not fully effectively utilize compressor.
The model utility content
The utility model technical problem to be solved is: propose a kind of mixed C NG gas station that possesses versatility and use compressor, can be the CNG automobile inflating, also can inflate for tank car; In addition, also propose a kind of mixed C NG gas station control system, can fully effectively utilize compressor, realized intelligent work.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: mixed C NG gas station uses compressor, comprises compressor body, exhaust duct, air valve switch; Said compressor body is connected with exhaust duct through air valve switch; Said exhaust duct comprises exhaust duct that is complementary with the inflation post and the exhaust duct that is complementary with sequential disc.
Further, said air valve switch is the three-way air valve switch, and its first interface tube connects compressor body, and second interface tube, the 3rd interface tube are respectively with the exhaust duct that is complementary with the inflation post, be connected with exhaust duct that sequential disc is complementary.
Further, said air valve switch is a pneumatic ball valve.
Mixed C NG gas station control system comprises that control gear, mixed C NG gas station are with compressor, inflation post, sequential disc and gas selling machine; Said mixed C NG gas station is connected with control gear with compressor, inflation post, sequential disc; Said mixed C NG gas station with the exhaust duct that is complementary with the inflation post of compressor with inflate post and be connected; Said mixed C NG gas station is connected with sequential disc with the exhaust duct with sequential disc is complementary of compressor; Said sequential disc connects gas selling machine.
Further, said control gear is the PLC controller.
Further, this mixed C NG gas station control system also comprises gas storage well, said gas storage well order of connection dish.
The beneficial effect of the utility model is: through traditional compressor is improved, make it possess versatility, can either be the CNG automobile inflating, also can inflate for tank car, realize " a tractor serves several purposes "; Through each equipment in the mixed C NG gas station is integrated control, intelligent degree is higher, and every compressor can both be fully effectively used, and compares conventional hybrid CNG gas station and can reduce number of compressors, thereby reduce the cost of building a station.
Description of drawings
Fig. 1 is the example structure schematic representation of mixed C NG gas station with compressor;
Schematic representation when Fig. 2 works for the embodiment of mixed C NG gas station control system.
Among the figure, 1 is the threeway pneumatic ball valve, and 2 is the exhaust duct that is complementary with the inflation post; 3 is the exhaust duct that is complementary with sequential disc, and 4 is first interface tube of pneumatic ball valve, and 5 is second interface tube of pneumatic ball valve; 6 is the 3rd interface tube of pneumatic ball valve, and 7 is one-way valve.
Embodiment
For the technological scheme that makes the utility model is more clear, complete, the utility model is done further to describe below in conjunction with accompanying drawing and embodiment.
The utility model discloses a kind of mixed C NG gas station that possesses versatility and use compressor, can be the CNG automobile inflating, also can inflate for tank car; Its structure comprises compressor body, exhaust duct, air valve switch; Said compressor body is connected with exhaust duct through air valve switch; Said exhaust duct comprises exhaust duct that is complementary with the inflation post and the exhaust duct that is complementary with sequential disc.
In addition, the invention also discloses a kind of mixed C NG gas station control system, can fully effectively utilize compressor, realize intelligent work; Its structure comprises that control gear, mixed C NG gas station are with compressor, inflation post, sequential disc and gas selling machine; Said mixed C NG gas station is connected with control gear with compressor, inflation post, sequential disc; Said mixed C NG gas station with the exhaust duct that is complementary with the inflation post of compressor with inflate post and be connected; Said mixed C NG gas station is connected with sequential disc with the exhaust duct with sequential disc is complementary of compressor; Said sequential disc connects gas selling machine.
Referring to Fig. 1, the mixed C NG gas station in this example uses compressor, the exhaust duct 2 that comprises compressor body, threeway pneumatic ball valve 1, is complementary with the inflation post, the exhaust duct 3 that is complementary with sequential disc; First interface tube 4 of threeway pneumatic ball valve 1 connects compressor body; Second interface tube 5 of threeway pneumatic ball valve 1 connects the exhaust duct 2 that is complementary with the inflation post; The 3rd interface tube 6 connections of threeway pneumatic ball valve 1 and the exhaust duct 3 that sequential disc is complementary; In this example, threeway pneumatic ball valve 1 also can replace with two independent air valves.
Referring to Fig. 2, the mixed C NG gas station control system in this example comprises: comprise control gear (not drawing among the figure), 3 compressors as shown in Figure 1,2 inflation posts, 1 sequential disc, 1 gas selling machine and 1 gas storage well; The exhaust duct 2 with the inflation post is complementary of No. 1 compressor is connected the inflation post No. 1, exhaust duct 3 order of connection dishes that itself and sequential disc are complementary; The exhaust duct 2 with the inflation post is complementary of No. 2 compressors is connected the inflation post No. 2, exhaust duct 3 order of connection dishes that itself and sequential disc are complementary; The exhaust duct 2 with the inflation post is complementary of No. 3 compressors is connected with No. 2 inflation posts with No. 1 inflation post respectively through one-way valve 7, and it is connected with sequential disc with the exhaust duct 3 that sequential disc is complementary; Sequential disc is connected with gas selling machine, gas storage well; The threeway pneumatic ball valve 1 of each compressor is connected with control gear, and No. 1 inflation post, No. 2 inflation posts, sequential disc also are connected with control gear.In this system, No. 1 compressor and No. 2 compressors are as the main compressor of use, and No. 3 compressors are as the stand-by compressors of meeting an urgent need, and prevent the former corrupted or at busy state.
The working principle of this control system is: need be when No. 1 inflation post is inflated as tank car; Connect the gas transmission line between tank car and No. 1 inflation post; Manually boot No. 1 inflation on the inflation post and allow call button, will inflate signal and send to, No. 1 compressor start of control gear control to control gear; After the multistage supercharging of low pressure natural gas process; Open first interface tube 4 and second interface tube 5 of threeway pneumatic ball valve 1, high-pressure natural gas pours tank car through No. 1 inflation post with high-pressure natural gas again through being fed through the inflation post No. 1 with the exhaust duct 2 that is complementary of inflation post; When the inflation pressure of tank car met the demands, the pressure-detecting device on No. 1 inflation post will stop to inflate signal to be sent to control gear, No. 1 compressor shutdown of control gear control;
Workflow when tank car need be in the inflation of No. 2 inflation posts is similar with above-mentioned workflow of inflating at No. 1 inflation post, repeats no more here.
When the CNG automobile need be inflated, connect the gas transmission line between gas selling machine and the CNG automobile, manually boot inflation permission call button on the sequential disc; To inflate signal and send to control gear, No. 1 compressor start of control gear control is after the multistage supercharging of low pressure natural gas process; Open first interface tube 4 and the 3rd interface tube 6 of threeway pneumatic ball valve 1; High-pressure natural gas is fed through sequential disc through the exhaust duct 3 that is complementary with sequential disc, through sequential disc high-pressure natural gas is fed through gas selling machine again, when high-pressure natural gas is charged into the CNG automobile through gas selling machine then; Gas selling machine begins to charge; When inflation met the demands, the pressure-detecting device on the sequential disc will stop to inflate signal to be sent to control gear, No. 1 compressor shutdown of control gear control;
Pressure-detecting device on the sequential disc detects the air pressure of gas storage well automatically; When detecting gas storage well and need inflate, will inflate signal and send to, No. 1 compressor start of control gear control to control gear; After the multistage supercharging of low pressure natural gas process; Open first interface tube 4 and the 3rd interface tube 6 of threeway pneumatic ball valve 1, high-pressure natural gas is fed through sequential disc through the exhaust duct 3 that is complementary with sequential disc, through sequential disc high-pressure natural gas is fed through gas storage well again;
In addition, need inflate or gas storage well need inflate the time as the CNG automobile, also can start No. 2 compressors by control gear control, the flow process that its workflow and above-mentioned utilizes No. 1 compressor boost rock gas to inflate is similar, repeats no more here.
Promptly need inflate or gas storage well need inflate the time as the CNG automobile; Control gear can be selected idle that in No. 1 compressor and No. 2 compressors; If the both is idle; Then can select lower that of frequency of utilization, the frequency of utilization gap that so can as far as possible dwindle No. 1 compressor and No. 2 compressors prevents excessively to use certain compressor to cause its lost of life; When No. 1 compressor or No. 2 compressors are not idle; Then can select compressor start No. 3, No. 3 compressors can be the tank car inflation through No. 1 inflation post, or are the tank car inflation through No. 2 inflation posts; Or be the CNG automobile inflating, or be the gas storage well inflation through sequential disc through sequential disc.
Mixed C NG gas station control system in this example has " female station/mark station/master tape mark/marker tape is female " four kinds of mode of operations, and the user can select its mode of operation according to the actual requirements:
Female station pattern: control gear is controlled the compressor start and stop according to inflating the subsidiary detected Compressor Discharge Pressure signal of pressure-detecting device of permission signal and compressor body, thereby inflates or the end inflation to tank car with the inflation post;
Mark the station pattern: control gear allows the detected pressure signal of pressure-detecting device on signal and the sequential disc according to inflation, the start and stop of control compressor, thereby to gas storage well inflation or end inflation; Also can be through gas selling machine to CNG automobile inflating or end inflation;
Master tape mark pattern: system works is at mother's priority status of standing, and promptly as long as the inflation of sending through the inflation post allows signal effective, the just preferential inflation post that utilizes is inflated to tank car; Only when not having tank car to inflate, system can be according to detected pressure gas storage well pressure, from the inflation of trend gas storage well, and in the gas storage well gas replenishment process, if when having tank car to need aerating again, will go back to automatically to the tank car inflated condition;
Marker tape master mold formula: system works promptly preferentially according to detected gas storage well pressure, from the inflation of trend gas storage well, but when gas storage well need not be inflated, can allow signal according to the inflation that the inflation post sends at the female priority status of marker tape, utilizes the inflation post to inflate to tank car; And, in the time of need inflating again as if gas storage well, will go back to automatically to the gas storage well inflated condition in the tank car gas replenishment process.
The utility model technological scheme required for protection comprises but is not limited only to the foregoing description, and those skilled in the art can derive more equivalents according to foregoing description, and it all belongs to the protection domain of the utility model.

Claims (6)

1. mixed C NG gas station uses compressor, comprises compressor body, exhaust duct, air valve switch; Said compressor body is connected with exhaust duct through air valve switch, it is characterized in that, said exhaust duct comprises exhaust duct that is complementary with the inflation post and the exhaust duct that is complementary with sequential disc.
2. mixed C NG as claimed in claim 1 gas station uses compressor; It is characterized in that; Said air valve switch is the three-way air valve switch; Its first interface tube connects compressor body, and second interface tube, the 3rd interface tube are respectively with the exhaust duct that is complementary with the inflation post, be connected with exhaust duct that sequential disc is complementary.
3. according to claim 1 or claim 2 mixed C NG gas station uses compressor, it is characterized in that said air valve switch is a pneumatic ball valve.
4. mixed C NG gas station control system is characterized in that, comprises that control gear, mixed C NG as claimed in claim 1 gas station are with compressor, inflation post, sequential disc and gas selling machine; Said mixed C NG gas station is connected with control gear with compressor, inflation post, sequential disc; Said mixed C NG gas station with the exhaust duct that is complementary with the inflation post of compressor with inflate post and be connected; Said mixed C NG gas station is connected with sequential disc with the exhaust duct with sequential disc is complementary of compressor; Said sequential disc connects gas selling machine.
5. mixed C NG as claimed in claim 4 gas station control system is characterized in that said control gear is the PLC controller.
6. like claim 4 or 5 described mixed C NG gas station control system, it is characterized in that, also comprise gas storage well, said gas storage well order of connection dish.
CN2011203979491U 2011-10-19 2011-10-19 Compressor and control system for mixed compressed natural gas (CNG) filling station Expired - Fee Related CN202284719U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203979491U CN202284719U (en) 2011-10-19 2011-10-19 Compressor and control system for mixed compressed natural gas (CNG) filling station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203979491U CN202284719U (en) 2011-10-19 2011-10-19 Compressor and control system for mixed compressed natural gas (CNG) filling station

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148348A (en) * 2013-03-22 2013-06-12 北京伯肯新能源设备有限公司 Electronic type CNG (Compressed Natural Gas) gas charging station sequence control panel
CN104456067A (en) * 2014-12-15 2015-03-25 清华大学 Mixed gas filling device and mixed gas filling method of CNG and HCNG
CN104534271A (en) * 2014-12-15 2015-04-22 清华大学 CNG and HCNG mixing and refilling device and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148348A (en) * 2013-03-22 2013-06-12 北京伯肯新能源设备有限公司 Electronic type CNG (Compressed Natural Gas) gas charging station sequence control panel
CN103148348B (en) * 2013-03-22 2015-04-29 北京伯肯新能源设备有限公司 Electronic type CNG (Compressed Natural Gas) gas charging station sequence control panel
CN104456067A (en) * 2014-12-15 2015-03-25 清华大学 Mixed gas filling device and mixed gas filling method of CNG and HCNG
CN104534271A (en) * 2014-12-15 2015-04-22 清华大学 CNG and HCNG mixing and refilling device and method
CN104534271B (en) * 2014-12-15 2016-05-18 清华大学 Mixing aerator and the aerating method of a kind of CNG and HCNG

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: SICHUAN JINXING CLEAN ENERGY EQUIPMENT CO., LTD.

Free format text: FORMER NAME: SICHUAN JINXING COMPRESSOR MANUFACTURING CO., LTD.

CP03 Change of name, title or address

Address after: 610036 Yingbin international, No. 19, West 1st Road, Jinniu District, Sichuan, Chengdu

Patentee after: Sichuan Venus clean energy equipment limited-liability company

Address before: Jinniu District Golden Road Chengdu city Sichuan province 610036 No. 166

Patentee before: Sichuan Jinxing Compressor Manufacturing Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120627

Termination date: 20171019

CF01 Termination of patent right due to non-payment of annual fee